1-53210604-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_000098.3(CPT2):​c.930C>T​(p.Gly310Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,614,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G310G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

CPT2
NM_000098.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 0.468
Variant links:
Genes affected
CPT2 (HGNC:2330): (carnitine palmitoyltransferase 2) The protein encoded by this gene is a nuclear protein which is transported to the mitochondrial inner membrane. Together with carnitine palmitoyltransferase I, the encoded protein oxidizes long-chain fatty acids in the mitochondria. Defects in this gene are associated with mitochondrial long-chain fatty-acid (LCFA) oxidation disorders. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP7
Synonymous conserved (PhyloP=0.468 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CPT2NM_000098.3 linkc.930C>T p.Gly310Gly synonymous_variant 4/5 ENST00000371486.4 NP_000089.1 P23786A0A140VK13
CPT2NM_001330589.2 linkc.930C>T p.Gly310Gly synonymous_variant 4/5 NP_001317518.1 A0A1B0GTB8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CPT2ENST00000371486.4 linkc.930C>T p.Gly310Gly synonymous_variant 4/51 NM_000098.3 ENSP00000360541.3 P23786

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251398
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152126
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.0000966
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000604

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:6Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Carnitine palmitoyl transferase II deficiency, severe infantile form Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingCounsylNov 14, 2017- -
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Carnitine palmitoyl transferase II deficiency, myopathic form;C1833511:Carnitine palmitoyl transferase II deficiency, severe infantile form;C1833518:Carnitine palmitoyl transferase II deficiency, neonatal form;C3280160:Encephalopathy, acute, infection-induced, susceptibility to, 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsNov 09, 2021- -
Carnitine palmitoyl transferase II deficiency, neonatal form Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Carnitine palmitoyl transferase II deficiency, myopathic form Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Encephalopathy, acute, infection-induced, susceptibility to, 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabApr 11, 2023- -
Carnitine palmitoyltransferase II deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 02, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
8.6
DANN
Benign
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs371971257; hg19: chr1-53676276; API